Hey thanks for playing! It was almost impossible to hear what you were saying again. If you have time, I definitely recommend giving it another go and going through the tutorial. You were missing the lock-on button. Also, the reason you drowned is because your stamina was incredibly low, and it ran out immediately. When you use the kukui juice (antidote) it also cuts down your stamina cap by 25% of its max, which you can replenish by eating the rations (the drumstick looking things). Furthermore, you haven't arrived at the actual dungeon yet, but you got close! It was just a bit further north than where you went.